Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Allegheny River bridge reconstructed at New Grade
Baltimore and Ohio R. R. crossing at Pittsburgh replaced by new structure of longer spans at higher elevation. New side span raised 15 ft. when channel span, built at new grade, is rolled in.
Allegheny River bridge reconstructed at New Grade
Baltimore and Ohio R. R. crossing at Pittsburgh replaced by new structure of longer spans at higher elevation. New side span raised 15 ft. when channel span, built at new grade, is rolled in.
Allegheny River bridge reconstructed at New Grade
Eng. News-Rec
1921
4 pages
5 Figs.
Aufsatz (Zeitschrift)
Englisch
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The bridge-raising program on the Allegheny river in Allegheny
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